1 /* 2 ** 3 ** Copyright 2008, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #include <stdint.h> 19 #include <sys/types.h> 20 21 #include <binder/Parcel.h> 22 #include <binder/IMemory.h> 23 #include <media/ICrypto.h> 24 #include <media/IDrm.h> 25 #include <media/IHDCP.h> 26 #include <media/IMediaCodecList.h> 27 #include <media/IMediaHTTPService.h> 28 #include <media/IMediaPlayerService.h> 29 #include <media/IMediaRecorder.h> 30 #include <media/IOMX.h> 31 #include <media/IRemoteDisplay.h> 32 #include <media/IRemoteDisplayClient.h> 33 #include <media/IStreamSource.h> 34 35 #include <utils/Errors.h> // for status_t 36 #include <utils/String8.h> 37 38 namespace android { 39 40 enum { 41 CREATE = IBinder::FIRST_CALL_TRANSACTION, 42 CREATE_MEDIA_RECORDER, 43 CREATE_METADATA_RETRIEVER, 44 GET_OMX, 45 MAKE_CRYPTO, 46 MAKE_DRM, 47 MAKE_HDCP, 48 ADD_BATTERY_DATA, 49 PULL_BATTERY_DATA, 50 LISTEN_FOR_REMOTE_DISPLAY, 51 GET_CODEC_LIST, 52 }; 53 54 class BpMediaPlayerService: public BpInterface<IMediaPlayerService> 55 { 56 public: 57 BpMediaPlayerService(const sp<IBinder>& impl) 58 : BpInterface<IMediaPlayerService>(impl) 59 { 60 } 61 62 virtual sp<IMediaMetadataRetriever> createMetadataRetriever() 63 { 64 Parcel data, reply; 65 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 66 remote()->transact(CREATE_METADATA_RETRIEVER, data, &reply); 67 return interface_cast<IMediaMetadataRetriever>(reply.readStrongBinder()); 68 } 69 70 virtual sp<IMediaPlayer> create( 71 const sp<IMediaPlayerClient>& client, int audioSessionId) { 72 Parcel data, reply; 73 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 74 data.writeStrongBinder(IInterface::asBinder(client)); 75 data.writeInt32(audioSessionId); 76 77 remote()->transact(CREATE, data, &reply); 78 return interface_cast<IMediaPlayer>(reply.readStrongBinder()); 79 } 80 81 virtual sp<IMediaRecorder> createMediaRecorder(const String16 &opPackageName) 82 { 83 Parcel data, reply; 84 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 85 data.writeString16(opPackageName); 86 remote()->transact(CREATE_MEDIA_RECORDER, data, &reply); 87 return interface_cast<IMediaRecorder>(reply.readStrongBinder()); 88 } 89 90 virtual sp<IOMX> getOMX() { 91 Parcel data, reply; 92 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 93 remote()->transact(GET_OMX, data, &reply); 94 return interface_cast<IOMX>(reply.readStrongBinder()); 95 } 96 97 virtual sp<ICrypto> makeCrypto() { 98 Parcel data, reply; 99 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 100 remote()->transact(MAKE_CRYPTO, data, &reply); 101 return interface_cast<ICrypto>(reply.readStrongBinder()); 102 } 103 104 virtual sp<IDrm> makeDrm() { 105 Parcel data, reply; 106 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 107 remote()->transact(MAKE_DRM, data, &reply); 108 return interface_cast<IDrm>(reply.readStrongBinder()); 109 } 110 111 virtual sp<IHDCP> makeHDCP(bool createEncryptionModule) { 112 Parcel data, reply; 113 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 114 data.writeInt32(createEncryptionModule); 115 remote()->transact(MAKE_HDCP, data, &reply); 116 return interface_cast<IHDCP>(reply.readStrongBinder()); 117 } 118 119 virtual void addBatteryData(uint32_t params) { 120 Parcel data, reply; 121 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 122 data.writeInt32(params); 123 remote()->transact(ADD_BATTERY_DATA, data, &reply); 124 } 125 126 virtual status_t pullBatteryData(Parcel* reply) { 127 Parcel data; 128 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 129 return remote()->transact(PULL_BATTERY_DATA, data, reply); 130 } 131 132 virtual sp<IRemoteDisplay> listenForRemoteDisplay(const String16 &opPackageName, 133 const sp<IRemoteDisplayClient>& client, const String8& iface) 134 { 135 Parcel data, reply; 136 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 137 data.writeString16(opPackageName); 138 data.writeStrongBinder(IInterface::asBinder(client)); 139 data.writeString8(iface); 140 remote()->transact(LISTEN_FOR_REMOTE_DISPLAY, data, &reply); 141 return interface_cast<IRemoteDisplay>(reply.readStrongBinder()); 142 } 143 144 virtual sp<IMediaCodecList> getCodecList() const { 145 Parcel data, reply; 146 data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); 147 remote()->transact(GET_CODEC_LIST, data, &reply); 148 return interface_cast<IMediaCodecList>(reply.readStrongBinder()); 149 } 150 }; 151 152 IMPLEMENT_META_INTERFACE(MediaPlayerService, "android.media.IMediaPlayerService"); 153 154 // ---------------------------------------------------------------------- 155 156 status_t BnMediaPlayerService::onTransact( 157 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 158 { 159 switch (code) { 160 case CREATE: { 161 CHECK_INTERFACE(IMediaPlayerService, data, reply); 162 sp<IMediaPlayerClient> client = 163 interface_cast<IMediaPlayerClient>(data.readStrongBinder()); 164 int audioSessionId = data.readInt32(); 165 sp<IMediaPlayer> player = create(client, audioSessionId); 166 reply->writeStrongBinder(IInterface::asBinder(player)); 167 return NO_ERROR; 168 } break; 169 case CREATE_MEDIA_RECORDER: { 170 CHECK_INTERFACE(IMediaPlayerService, data, reply); 171 const String16 opPackageName = data.readString16(); 172 sp<IMediaRecorder> recorder = createMediaRecorder(opPackageName); 173 reply->writeStrongBinder(IInterface::asBinder(recorder)); 174 return NO_ERROR; 175 } break; 176 case CREATE_METADATA_RETRIEVER: { 177 CHECK_INTERFACE(IMediaPlayerService, data, reply); 178 sp<IMediaMetadataRetriever> retriever = createMetadataRetriever(); 179 reply->writeStrongBinder(IInterface::asBinder(retriever)); 180 return NO_ERROR; 181 } break; 182 case GET_OMX: { 183 CHECK_INTERFACE(IMediaPlayerService, data, reply); 184 sp<IOMX> omx = getOMX(); 185 reply->writeStrongBinder(IInterface::asBinder(omx)); 186 return NO_ERROR; 187 } break; 188 case MAKE_CRYPTO: { 189 CHECK_INTERFACE(IMediaPlayerService, data, reply); 190 sp<ICrypto> crypto = makeCrypto(); 191 reply->writeStrongBinder(IInterface::asBinder(crypto)); 192 return NO_ERROR; 193 } break; 194 case MAKE_DRM: { 195 CHECK_INTERFACE(IMediaPlayerService, data, reply); 196 sp<IDrm> drm = makeDrm(); 197 reply->writeStrongBinder(IInterface::asBinder(drm)); 198 return NO_ERROR; 199 } break; 200 case MAKE_HDCP: { 201 CHECK_INTERFACE(IMediaPlayerService, data, reply); 202 bool createEncryptionModule = data.readInt32(); 203 sp<IHDCP> hdcp = makeHDCP(createEncryptionModule); 204 reply->writeStrongBinder(IInterface::asBinder(hdcp)); 205 return NO_ERROR; 206 } break; 207 case ADD_BATTERY_DATA: { 208 CHECK_INTERFACE(IMediaPlayerService, data, reply); 209 uint32_t params = data.readInt32(); 210 addBatteryData(params); 211 return NO_ERROR; 212 } break; 213 case PULL_BATTERY_DATA: { 214 CHECK_INTERFACE(IMediaPlayerService, data, reply); 215 pullBatteryData(reply); 216 return NO_ERROR; 217 } break; 218 case LISTEN_FOR_REMOTE_DISPLAY: { 219 CHECK_INTERFACE(IMediaPlayerService, data, reply); 220 const String16 opPackageName = data.readString16(); 221 sp<IRemoteDisplayClient> client( 222 interface_cast<IRemoteDisplayClient>(data.readStrongBinder())); 223 String8 iface(data.readString8()); 224 sp<IRemoteDisplay> display(listenForRemoteDisplay(opPackageName, client, iface)); 225 reply->writeStrongBinder(IInterface::asBinder(display)); 226 return NO_ERROR; 227 } break; 228 case GET_CODEC_LIST: { 229 CHECK_INTERFACE(IMediaPlayerService, data, reply); 230 sp<IMediaCodecList> mcl = getCodecList(); 231 reply->writeStrongBinder(IInterface::asBinder(mcl)); 232 return NO_ERROR; 233 } break; 234 default: 235 return BBinder::onTransact(code, data, reply, flags); 236 } 237 } 238 239 // ---------------------------------------------------------------------------- 240 241 } // namespace android 242
